Display device

ABSTRACT

A touch screen panel includes a plurality of pixels on a substrate, a sealing thin film on the substrate, and a plurality of sensing electrodes on the sealing thin film, each of the sensing electrodes having a mesh structure, the mesh structures of the sensing electrodes and the pixels overlapping different portions of the substrate.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a Continuation of U.S. patent application Ser. No.14/995,520, filed on Jan. 14, 2016, which is a Continuation of U.S.patent application Ser. No. 13/584,879, filed on Aug. 14, 2012 (issuedas U.S. Pat. No. 9,239,654), and claims priority from and the benefit ofKorean Patent Application No. 10-2012-0040969, filed on Apr. 19, 2012,each of which is hereby incorporated by reference for all purpose as iffully set forth herein.

BACKGROUND Field

Example embodiments relate to a touch screen panel, and moreparticularly, to a touch screen panel of which image quality is notdamaged even in the case of using a metal material capable of beingsintered at a low temperature.

Discussion of the Background

A touch screen panel is an input device capable of inputting apredetermined command by allowing a user to touch a screen with his/herhand or with an object. Since the touch screen panel, as describedabove, does not require a separate input device, e.g., a keyboard, amouse, or the like, its use is increasing, e.g., in mobile devices.

The touch screen panel may be implemented as, e.g., a resistive type, anoptical sensing type, a capacitive type, and the like. For example, thecapacitive type touch screen panel may include a transparent electrode,e.g., made of an indium tin oxide (ITO) material, to detect a point atwhich capacitance is changed according to a contact by a user's hand orobject, thereby recognizing a contact position.

For example, the transparent electrode may be formed by aphotolithography process. In another example, the transparent electrodemay be formed by a printing process, followed by sintering a transparentelectrode material in a liquid form. However, since these processes areperformed at a high temperature, pixels may be deteriorated and damaged.

SUMMARY

Example embodiments provide a touch screen panel with a sensingelectrode made of metal capable of being sintered at a low temperature,thereby preventing damage to pixels.

Example embodiments also provide a touch screen panel with a sensingelectrode having a mesh shape, thereby improving visibility.

According to an exemplary embodiment, there is provided a touch screenpanel including a plurality of pixels on a substrate, a sealing thinfilm on the substrate, and a plurality of sensing electrodes on thesealing thin film, each of the sensing electrodes having a meshstructure, the mesh structures of the sensing electrodes and the pixelsoverlapping different portions of the substrate.

The sensing electrodes may include an opaque metal.

The mesh structure of each sensing electrode may include a plurality ofintertwined metal lines defining a plurality of openings, each openingexposing at least one pixel.

Each of the metal lines may have a width that equals an inter-pixeldistance or less.

Each opening may expose three pixels corresponding to a red pixel, agreen pixel, and blue pixel.

The sensing electrodes may include first sensing electrodes extended ina first direction, and second sensing electrodes extended in a seconddirection intersecting with the first direction.

The first sensing electrode and the second electrode may be formeddirectly on the sealing thin film, an insulating film being positionedbetween the first sensing electrodes and the second electrodes at leastin an intersection region between the first and second sensingelectrodes.

The first and second sensing electrodes may be on different layers, thefirst sensing electrodes being on the sealing thin film, and aninsulating layer being positioned between the first sensing electrodesand the second sensing electrodes.

The first sensing electrodes may include a plurality of first sensingcells arranged in the first direction, and first connection patternsconnecting the first sensing cells to each other, and the second sensingelectrodes include a plurality of second sensing cells arranged in thesecond direction, and second connection patterns connecting the secondsensing cells to each other.

The first sensing cells and the second sensing cells may have a diamondshape.

The first sensing cells and the second sensing cells may have a meshstructure with a plurality of openings.

The first sensing electrode may further include a first auxiliary cellconnected to the first connection pattern, and the second sensingelectrode may further include a second auxiliary cell connected to thesecond connection pattern.

The first auxiliary cell may be on a central portion of the firstconnection pattern, and the second auxiliary cell may be on a centralportion of the second connection pattern.

The first auxiliary cell may extend toward a second sensing celladjacent thereto, and the second auxiliary cell may extend toward afirst sensing cell adjacent thereto.

Each of the first auxiliary cell and the second auxiliary may have amesh structure with at least one opening.

The opening in each of the first auxiliary cell and the second auxiliarycell may expose at least one pixel.

The first connection pattern and the second connection pattern mayintersect with each other, an insulating film being interposedtherebetween.

The first sensing electrode and the second electrode may have a stripeshape, each of the first and second sensing electrodes having a meshstructure with a plurality of openings.

The touch screen panel may further include a dummy electrode between thefirst sensing electrode and the second electrode.

The dummy electrode may be electrically floated.

The dummy electrode may include an opaque metal.

The dummy electrode may have a mesh structure with at least one opening.

The at least one opening may expose at least one pixel.

The dummy electrode may be positioned on the sealing thin film or on theinsulating layer.

The touch screen panel may further include a first position detectingline connected to one end of the first sensing electrode, a secondposition detecting line connected to one end of the second sensingelectrode.

The first position detecting line and the second position detecting linemay include a same material as the first and second sensing electrodes,respectively.

The sensing electrodes may on a surface of the sealing thin film facingaway from the substrate.

BRIEF DESCRIPTION OF THE DRAWINGS

Features will become apparent to those of ordinary skill in the art bydescribing in detail exemplary embodiments with reference to theattached drawings, in which:

FIG. 1 illustrates a plane view of a touch screen panel according to anexemplary embodiment.

FIG. 2 illustrates an enlarged view of region R in FIG. 1.

FIG. 3 illustrates a cross-sectional view along line A-B in FIG. 2.

FIG. 4 illustrates a cross-sectional view of a portion at which a firstsensing electrode and a second sensing electrode intersect with eachother.

FIG. 5 illustrates a cross-sectional view of a touch screen panelaccording to another exemplary embodiment.

FIG. 6 illustrates an enlarged view of main components of a touch screenpanel according to another exemplary embodiment.

FIG. 7 illustrates a plane view of a touch screen panel according toanother exemplary embodiment.

FIG. 8 illustrates a plan view of a touch screen panel according toanother exemplary embodiment.

FIG. 9 illustrates a cross-sectional view along line C-D of FIG. 8.

DETAILED DESCRIPTION

Korean Patent Application No. 10-2012-0040969, filed on Apr. 19, 2012,in the Korean Intellectual Property Office, and entitled: “Touch ScreenPanel” is incorporated by reference herein in its entirety.

Example embodiments will now be described more fully hereinafter withreference to the accompanying drawings; however, they may be embodied indifferent forms and should not be construed as limited to theembodiments set forth herein. Rather, these embodiments are provided sothat this disclosure will be thorough and complete, and will fullyconvey the scope of the invention to those skilled in the art.

In the drawing figures, the dimensions of layers and regions may beexaggerated for clarity of illustration. It will also be understood thatwhen a layer (or element) is referred to as being “on” another layer orsubstrate, it can be directly on the other layer or substrate, orintervening layers may also be present. In addition, it will also beunderstood that when a layer referred to as being “between” two layers,it can be the only layer between the two layers, or one or moreintervening layers may also be present. Like reference numerals refer tolike elements throughout.

Hereinafter, a touch screen panel according to an exemplary embodimentwill be described with reference to FIGS. 1-3. FIG. 1 is a plane view ofa touch screen panel according to an exemplary embodiment, FIG. 2illustrates an enlarged view of region R in FIG. 1, and FIG. 3illustrates a cross-sectional view along line A-B in FIG. 2.

Referring to FIG. 1, a touch screen panel according to an exemplaryembodiment may include a plurality of sensing electrodes for sensing atouch by a user. For example, the sensing electrodes may include aplurality of first sensing electrodes 50 and a plurality of secondsensing electrodes 60 intersecting with each other.

As shown in FIG. 1, the first sensing electrodes 50 may be formed to belong in a first direction, e.g., may extend in an X-axis direction, andmay be arranged in plural in a second direction, e.g., may be spacedapart from each other in a Y-axis direction, intersecting with the firstdirection. The second sensing electrode 60 may be formed to be long inthe second direction and may be arranged in plural in the firstdirection.

Conventional touch screen panels may include sensing electrodes formedof indium tin oxide (ITO). However, ITO may require a high temperatureprocess, thereby damaging the pixels in the touch screen panel.Therefore, according to the example embodiments, the first and secondsensing electrodes 50 and 60 of the touch screen panel may be formed ofan opaque metal capable of being sintered at a low temperature.

For example, the opaque metal for forming the first and second sensingelectrodes 50 and 60 may include a low resistance metal, e.g., at leastone of Ag, Al, Cu, Cr, Ni, or the like, but is not limited thereto.Therefore, a process of manufacturing the first and second sensingelectrodes 50 and 60 may be performed at a low temperature, such thatdamage to the pixels may be prevented or substantially minimized. Inaddition, as the first and second sensing electrodes 50 and 60 areformed of a metal having resistance lower than that of ITO, an RC delaymay be reduced.

Further, as the opaque metal is more flexible and generates less cracks,e.g., as compared to the ITO, it may be easily applied to a flexibletouch screen panel. In contrast, as the ITO has insufficientflexibility, use of ITO electrodes in a flexible touch screen panel maycause cracks therein.

As the first and second sensing electrodes 50 and 60 according toexample embodiments are formed of an opaque metal, the first and secondsensing electrodes 50 and 60 may be formed in a mesh structure so as toprevent blocking pixels 20 (FIG. 2). As such, blocking of light emittedfrom the pixel 20 by the first and second sensing electrodes 50 and 60may be prevented or substantially minimized, thereby improving imagequality and visibility.

In detail, as illustrated in FIG. 2, a plurality of pixels 20 may bearranged, e.g., in a matrix pattern, under the first and second sensingelectrodes 50 and 60. Each of the first and second sensing electrodes 50and 60 may be formed in a mesh structure, i.e., each of the first andsecond sensing electrodes 50 and 60 may include a plurality ofintertwined metal lines 100 forming a plurality of openings 70, so asnot to overlap the pixels 20. That is, the pixels 20 may be exposedthrough the plurality of openings 70, such that the light emitted fromthe pixels 20 may be transmitted outside through the openings 70 withoutbeing blocked by the metal wires 100 of the first and second sensingelectrodes 50 and 60.

For example, the first and second sensing electrodes 50 and 60 may bepositioned to have the metal lines 100 therein overlap non-emissiveregions, i.e., regions where pixels 20 are not present, of the touchscreen panel. For example, the pixels 20 may be spaced apart from eachother by a predetermined distance, so the metal lines 100 configuringthe mesh may be positioned to overlap the spaces, i.e., only the spaces,between the pixels 20. In this case, in order to prevent reducedvisibility of the touch screen panel due to overlap between the metallines 100 and the pixels, the metal lines 100 of the first and secondsensing electrodes 50 and 60 may have a width that equals an inter-pixeldistance or less.

For example, as illustrated in FIG. 2, the openings 70 in the meshstructure of the first and second sensing electrodes 50 and 60 may bearranged so one opening 70 corresponds to, e.g., exposes, three pixels20. However, example embodiments are not limited thereto, e.g., oneopening 70 may be formed to correspond to one pixel 20. Therefore, eachopening 70 may correspond to at least one pixel 20. For example, whenthe opening 70 corresponds to three pixels 20, the three pixels 20 maybe set to be a red pixel, a green pixel, and a blue pixel, respectively.

Referring FIGS. 1 and 2, the first sensing electrode 50 may include aplurality of first sensing cells 51 arranged in the first direction,i.e., along the x-axis, and first connection patterns 52 electricallyconnecting the first sensing cells 51 to each other. In addition, thesecond sensing electrode 60 may include a plurality of second sensingcells 61 arranged in the second direction, i.e., along the y-axis, andsecond connection patterns 62 electrically connecting the second sensingcells 61 to each other.

Here, as shown in FIGS. 1 and 2, the first sensing cell 51 and thesecond sensing cell 61 may have a diamond shape. For example, seediamonds in bold line in FIG. 1 illustrating second sensing cells 61connected by second connection patterns 62 along the y-axis. However,the first sensing cell 51 and the second sensing cell 61 may also havevarious shapes, e.g., a circular shape, a polygonal shape, and the like,in addition to the diamond shape.

For example, each of the first sensing cell 51 and the second sensingcell 61 may be provided with a plurality of openings 70, as illustratedin FIG. 2. Further, a region between four adjacent sensing cells (see adashed line in FIG. 2 illustrating an edge of one second sensing cell61) may include an intersection T of the first connection pattern 52 andthe second connection pattern 62 that defines additional openings 70.Although the case in which the first connection pattern 52 and thesecond connection pattern 62 are formed of one metal line is shown inFIGS. 1 and 2, they may also be provided with the opening 70 forexposing the pixel 20.

Referring back to FIG. 1, one end of each first sensing electrode 50 maybe connected to a first position detecting line 150, and one end of eachsecond sensing electrode 60 may be connected to a second positiondetecting line 160. The plurality of first position detecting lines 150and the second position detecting lines 160 may transfer signalsdetected from each first and second sensing electrodes 50 and 60,respectively, to an external touch driving circuit (not shown) through apad unit 200. The touch driving circuit receiving the signalstransferred through the first position detecting line 150 and the secondposition detecting line 160 may recognize a position touched by theuser.

Here, the first position detecting line 150 may be formed of a samematerial as that of the first sensing electrode 50 connected thereto,and the second position detecting line 160 may be formed of a samematerial as that of the second sensing electrode 60 connected thereto.Therefore, since the position detecting lines 150 and 160 may be formedby the same process as the process of forming the first and secondsensing electrodes 50 and 60, a manufacturing process may be furthersimplified.

FIG. 3 is a cross-sectional view along line A-B of FIG. 2. FIG. 4 is across-sectional view of a portion at which the first sensing electrode50 and the second sensing electrode 60 intersect with each other.

Referring FIG. 3, the touch screen panel according to an exampleembodiment may include a substrate 10, the plurality of pixels 20, asealing thin film 30, and the first and second sensing electrodes 50 and60.

The substrate 10, on which the plurality of pixels 20 are positioned,may be formed of an insulating material, e.g., glass, plastic, silicon,or a synthetic resin, or other materials, e.g., metal. In addition, thesubstrate 10 may be formed of a material having flexibility so as to bebent or folded, e.g., polyethyleneterephthalate (PET), polycarbonate(PC), polymethylmetharcylate (PMMA), polyethylenenaphthalate (PEN),polyethersulfone (PES), cyclic olefin copolymer (COC),triacetylcellulose (TAC), polyvinyl alcohol (PVA), polyimide (PI),polystyrene (PS), or the like.

The plurality of the pixels 20 may be arranged on the substrate 10, andeach of the pixels 20 may be positioned so as not to overlap the firstand second sensing electrodes 50 and 60. Therefore, light emitted fromthe pixels 20 is not blocked by the first and second sensing electrodes50 and 60.

The sealing thin film 30 may be positioned on the substrate 10 and thepixels 20 in order to protect the pixels 20 positioned on the substrate10. That is, the sealing thin film 30 may be formed at an upper side ofthe pixels 20, thereby making it possible to prevent penetration ofmoisture, oxygen, or the like, into the pixel 20. For example, thesealing thin film 30 may be formed of a transparent material having hightransmissivity. In addition, the sealing thin film 30 may also be formedof a film exhibiting flexibility so as to be bent or folded.

As shown in FIG. 3, according to example embodiments, the first sensingelectrode 50 and the second sensing electrode 60 may be formed on onesurface of the sealing thin film 30. That is, the first and secondsensing electrodes 50 and 60 may be formed on, e.g., directly on, a samesurface of the sealing thin film 30.

However, when the first and second sensing electrodes 50 are on a samesurface, the touch screen panel includes an insulating film 41 (FIG. 4)between the first sensing electrode 50 and the second sensing electrode60. That is, as illustrated in FIG. 2, the first sensing electrode 50and the second sensing electrode 60 intersect with each other at aportion T, so the insulating film 41 may be positioned on the sealingthin film 30 to insulate the first sensing electrode 50 from the secondsensing electrode 60.

Since the first sensing electrode 50 and the second electrode 60intersect at a region between the first connection pattern 52 and thesecond connection pattern 62, the insulating film 41 may be presentbetween the first connection pattern 52 and the second connectionpattern 62, as illustrated in FIG. 4. Here, the insulating film 41 maybe partially formed, e.g., only, at the portion at which the firstsensing electrode 50 and the second sensing electrode 60 intersect witheach other.

FIG. 5 is a cross-sectional view of a touch screen panel according toanother exemplary embodiment. Referring to FIG. 5, the touch screenpanel may include the first sensing electrode 50 and the second sensingelectrode 60 on different layers, so an insulating layer 42 may beinterposed between the first sensing electrodes 50 and the secondsensing electrodes 60.

For example, if the first sensing electrodes 50 are positioned on, e.g.,directly on, the sealing thin film 30, the insulating layer 42 may beformed between the first sensing electrode 50 and the second sensingelectrode 60. Accordingly, the first sensing cell 51 and the firstconnection pattern 52 configuring the first sensing electrode 50 may bepositioned on the sealing thin film 30, and the second sensing cell 61and the second connection pattern 62 configuring the second sensingelectrode 60 may be positioned on the insulating layer 42. That is, theinsulating layer 42 may overlap the entire first sensing electrodes 50,as compared to the insulating film 41 in FIG. 4 that overlaps only partof each first sensing electrode 50.

FIG. 6 is an enlarged schematic view of a touch screen panel accordingto another exemplary embodiment. Referring to FIG. 6, the touch screenpanel may additionally include auxiliary cells 55 and 65 in the firstsensing electrodes 50 and the second sensing electrodes 60,respectively.

As shown in FIG. 2, when the first connection pattern 52 and the secondconnection pattern 62 are formed of metal lines, touch sensitivity atportions of the connection patterns 52 and 62 may be lowered. Therefore,according to the exemplary embodiment in FIG. 6, the auxiliary cells 55and 66 connected to each connection pattern 52 and 62 may be provided inorder to improve the touch sensitivity.

That is, the first auxiliary cell 55 may be connected to the firstconnection pattern 52, and the second auxiliary cell 65 may be connectedto the second connection pattern 62. Here, the first auxiliary cell 55may be positioned at a central portion of the first connection pattern52, and the second auxiliary cell 65 may be positioned at a centralportion of the second connection pattern 62.

In addition, as shown in FIG. 6, the auxiliary cell 55 may be extendedtoward a second sensing cell 61 adjacent thereto (see dashed lineindicating an edge of the second sensing cell 61 and correspondingsecond patterns 62), and the second auxiliary cell 65 may be extendedtoward a first sensing cell 51 adjacent thereto. Here, the firstauxiliary cell 55 and the second auxiliary cell 65 may have a mesh shapein which they include at least one opening 71 so as not to be overlappedwith the pixel 20. For example, the opening 71 in the first auxiliarycell 55 and the second auxiliary cell 65 may be positioned so as tocorrespond to at least one pixel 20. In addition, the first auxiliarycell 55 may be formed integrally with the connection pattern 52 using anopaque metal, and the second auxiliary cell 65 may also be formedintegrally with the second connection pattern 62 using the opaque metal.

FIG. 7 is a plane view of a touch screen panel according to anotherexemplary embodiment. Referring to FIG. 7, first sensing electrodes 50′and second sensing electrodes 60′ may be formed in a stripe shape, inwhich they include the plurality of openings 70 as shown. In otherwords, the first sensing electrodes 50′ and the second electrodes 60′may have a bar-shaped mesh structure.

For example, the first sensing electrodes 50′ may be linear, and each ofthe first sensing electrodes 50′ may have a mesh structure, e.g., eachof the first sensing electrodes 50′ may include a plurality ofintersecting metal lines defining a grid and a plurality of openings 70arranged in a matrix pattern. Each first sensing electrode 50′ mayextend in the first direction and may be spaced apart from an adjacentfirst sensing electrode 50′ in the second direction. For example, eachof the first sensing electrodes 50′ may be connected via a separatefirst position detecting line 150 to the pad unit 200. The secondsensing electrodes 60′ are substantially the same as the first sensingelectrodes 50′, with the exception of extending in the second direction,rather than the first direction.

FIG. 8 is a plane view of a touch screen panel according to anotherexemplary embodiment, and FIG. 9 is a cross-sectional view along lineC-D of FIG. 8. It is noted that the touch screen panel in FIG. 8 issubstantially the same as that in FIG. 7, with the exception ofadditionally including a dummy electrode.

Referring to FIG. 8, the touch screen panel may include a dummyelectrode 80 disposed between the first sensing electrode 50′ and thesecond sensing electrode 60′. For example, the first sensing electrodes50′ may be positioned on the sealing thin film 30, and the secondsensing electrodes 60′ may be positioned on the insulating layer 42. Inanother example, the second sensing electrodes 60′ may be positioned onthe sealing thin layer 30, and the first sensing electrodes 50′ may bepositioned on the insulating layer 42.

As shown in FIG. 8, in the case in which the first sensing electrodes50′ and the second sensing electrodes 60′ are formed in the stripeshape, a region that does not have the first and second sensingelectrodes 50′ and 60′ is defined. That is, the dummy electrodes 80 maybe disposed between the first sensing electrodes 50′ and the secondsensing electrodes 60′ in order to uniformly maintain the visibility. Incontrast, when the dummy electrode 80 are not formed, reflectivitycharacteristics may be different between a region that has the sensingelectrodes 50′ and 60′ and a region that does not have the sensingelectrodes 50 and 60, thereby generating different visibilitycharacteristics.

Here, the dummy electrode 80 may be in a state in which it iselectrically floated. For example, the dummy electrode 80 may bepositioned so as to be spaced apart from each of the first sensingelectrodes 50′ and the second sensing electrodes 60′ by a predetermineddistance.

In addition, the dummy electrode 80 may be made of a same material asthose of the first sensing electrodes 50′ and/or the second sensingelectrodes 60′. That is, when the dummy electrodes 80 are formed on thesame layer as a layer on which the first sensing electrodes 50′ areformed, the dummy electrodes 80 may be formed of the same material asthat of the first sensing electrodes 50′. Similarly, when the dummyelectrodes 80 are formed on the same layer as a layer on which thesecond sensing electrodes 60′ are formed, the dummy electrodes 80 may beformed of the same material as that of the second sensing electrodes60′.

Therefore, the dummy electrodes 80 may also be formed of an opaquematerial capable of being sintered at a low temperature, and may beformed in a mesh shape including at least one opening 81 to preventoverlap with the pixels 20. For example, the opening 81 in the dummyelectrode 80 may correspond to at least one pixel 20. If the opening 81corresponds to three pixels 20, the three pixels 20 may be set to be ared pixel, a green pixel, and a blue pixel.

Referring to FIG. 9, the dummy electrode 80 and the first sensingelectrode 50′ may be positioned directly on the same layer, i.e., on thesealing thin film 30, and the insulating layer 42 may be entirelyinterposed between the first sensing electrodes 50′ and the secondsensing electrodes 60′. However, the dummy electrodes 80 may also bepositioned on the insulating layer 42 with the second sensing electrodes60′.

As set forth above, according to the exemplary embodiments, the sensingelectrodes of the touch screen panel may be made of metal capable ofbeing sintered at a low temperature, thereby preventing damage to thepixels during manufacturing. In addition, the sensing electrodes areformed in a mesh shape, thereby preventing overlap between the sensingelectrodes and the pixels to improve visibility.

Example embodiments have been disclosed herein, and although specificterms are employed, they are used and are to be interpreted in a genericand descriptive sense only and not for purpose of limitation. In someinstances, as would be apparent to one of ordinary skill in the art asof the filing of the present application, features, characteristics,and/or elements described in connection with a particular embodiment maybe used singly or in combination with features, characteristics, and/orelements described in connection with other embodiments unless otherwisespecifically indicated. Accordingly, it will be understood by those ofskill in the art that various changes in form and details may be madewithout departing from the spirit and scope of the example embodimentsas set forth in the following claims.

What is claimed is:
 1. A display device, comprising: a plurality ofpixels arranged on a substrate; an encapsulation layer disposed on thesubstrate; and a plurality of sensing electrodes disposed on theencapsulation layer, the plurality of sensing electrodes comprisingfirst sensing electrodes extended in a first direction and secondsensing electrodes extended in a second direction; wherein: each of thefirst sensing electrodes comprises a plurality of first sensing cellsarranged in the first direction and a plurality of first connectionpatterns; each of the second sensing electrodes comprises a plurality ofsecond sensing cells arranged in the second direction and at least onesecond connection pattern; each of the first sensing cells and thesecond sensing cells has a mesh structure; two adjacent first sensingcells are electrically connected by at least two first connectionpatterns spaced apart from each other; and two adjacent second sensingcells are electrically connected by at least one second connectionpattern, the at least one second connection pattern including aplurality of openings.
 2. The display device as claimed in claim 1,wherein the sensing electrodes comprise an opaque metal.
 3. The displaydevice as claimed in claim 2, wherein each of the first and secondsensing cells comprises a plurality of intertwined metal lines defininga plurality of openings, each opening exposing at least one pixel. 4.The display device as claimed in claim 3, wherein each of the metallines has a width that is less than or equal to an inter-pixel distance.5. The display device as claimed in claim 3, wherein each openingexposes three pixels corresponding to a red pixel, a green pixel, and ablue pixel.
 6. The display device as claimed in claim 1, wherein thefirst sensing electrodes and the second sensing electrodes are formed onthe encapsulation layer, and an insulating film is positioned betweenthe at least two first connection patterns and the at least one secondconnection pattern.
 7. The display device as claimed in claim 6, whereinthe plurality of first sensing cells and the second sensing electrodesare arranged on the same layer.
 8. The display device as claimed inclaim 1, wherein each of the second sensing electrodes further comprisesa plurality of metal lines forming a plurality of openings and connectedto the at least one second connection pattern.
 9. The display device asclaimed in claim 1, wherein each of the first sensing electrodes furthercomprises a plurality of metal lines forming a plurality of openings andconnected to the first connection patterns.
 10. The display device asclaimed in claim 9, wherein each of the openings formed by the pluralityof metal lines in each of the second sensing electrodes and the firstsensing electrodes exposes at least one pixel.
 11. The display device asclaimed in claim 1, further comprising dummy electrodes having a meshstructure.
 12. The display device as claimed in claim 11, wherein thedummy electrodes are disposed between the first sensing electrodes andthe second sensing electrodes.
 13. The display device as claimed inclaim 11, wherein the dummy electrodes are disposed in a region thatdoes not have the first sensing electrodes and the second sensingelectrodes.
 14. The display device as claimed in claim 11, wherein thedummy electrodes are electrically floated.
 15. The display device asclaimed in claim 11, wherein the dummy electrodes comprise an opaquemetal.
 16. The display device as claimed in claim 11, wherein each ofthe dummy electrodes comprises a plurality of intertwined metal linesdefining a plurality of openings.
 17. The display device as claimed inclaim 16, wherein each of the openings of the dummy electrodes exposesat least one pixel.
 18. The display device as claimed in claim 1,wherein the sensing electrodes are disposed on a surface of theencapsulation layer facing away from the substrate.
 19. The displaydevice as claimed in claim 1, further comprising: first positiondetecting lines connected to the first sensing electrodes; and secondposition detecting lines connected to the second sensing electrodes. 20.The display device as claimed in claim 19, wherein the first positiondetecting lines and the second position detecting lines comprise samematerials as the first sensing electrodes and the second sensingelectrodes, respectively.
 21. The display device as claimed in claim 1,wherein each of the plurality of first connection patterns includes atleast one first opening.